code: def test_filters():
      template = get_template("bytes.html.j2")
      assert format_bytes in FILTERS.values()
      assert format_bytes(2e9) in template.render(foo=2e9)
  
      template = get_template("custom_filter.html.j2")
      assert "baz" in template.render(foo=None)
  
file_path: dask/dask/widgets/tests/test_widgets.py
imports: from __future__ import annotations
  import os.path
  import pytest
  from dask.utils import format_bytes
  from dask.widgets import FILTERS, TEMPLATE_PATHS, get_environment, get_template
label_desc: Use image node_id 5 for calling a global function with example usage: test_filters() without return types